查询表倾斜或脏页率信息
功能介绍
该接口用于查询表倾斜或脏页率信息。
调用方法
请参见如何调用API。
URI
GET /v1/{project_id}/clusters/{cluster_id}/dms/tables/statistic
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
project_id |
是 |
String |
项目ID。获取方法,请参见获取项目ID。 |
cluster_id |
是 |
String |
集群ID。获取方法,请参见获取集群ID。 |
参数 |
是否必选 |
参数类型 |
描述 |
---|---|---|---|
rate_type |
是 |
String |
查询类型。固定取值。
|
offset |
是 |
Integer |
偏移量,表示从此偏移量开始查询,offset>=0。 |
limit |
是 |
Integer |
每页显示的条目数量。 |
order_by |
否 |
String |
排序字段。固定取值。
|
sort_by |
否 |
String |
正序还是倒叙。固定取值。
|
filter |
否 |
String |
查询条件。固定取值。
|
value |
否 |
String |
查询条件的取值。 |
请求参数
无
响应参数
状态码: 200
参数 |
参数类型 |
描述 |
---|---|---|
collect_time |
Long |
数据采集时间毫秒级时间戳。 |
data |
Array of ListTablesStatisticDto objects |
表倾斜率或脏页率列表。 |
count |
Integer |
总列表大小。 |
请求示例
https://{Endpoint}/v1/{project_id}/clusters/{cluster_id}/dms/tables/statistic?rate_type=dirtyPage&filter=&value=&offset=0&limit=1&order_by=&sort_by=ASC
响应示例
状态码: 200
{ "collect_time" : 0, "data" : [ { "db_name" : "postgres", "schema_name" : "pmk", "table_name" : "pmk_snapshot_coordinator_stat", "table_owner" : "Ruby", "table_size" : "224 KB", "skew_rate" : null, "dirty_page_rate" : 0.77 } ], "count" : 3 }
SDK代码示例
SDK代码示例如下。
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package com.huaweicloud.sdk.test; import com.huaweicloud.sdk.core.auth.ICredential; import com.huaweicloud.sdk.core.auth.BasicCredentials; import com.huaweicloud.sdk.core.exception.ConnectionException; import com.huaweicloud.sdk.core.exception.RequestTimeoutException; import com.huaweicloud.sdk.core.exception.ServiceResponseException; import com.huaweicloud.sdk.dws.v2.region.DwsRegion; import com.huaweicloud.sdk.dws.v2.*; import com.huaweicloud.sdk.dws.v2.model.*; public class ListTablesStatisticSolution { public static void main(String[] args) { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment String ak = System.getenv("CLOUD_SDK_AK"); String sk = System.getenv("CLOUD_SDK_SK"); ICredential auth = new BasicCredentials() .withAk(ak) .withSk(sk); DwsClient client = DwsClient.newBuilder() .withCredential(auth) .withRegion(DwsRegion.valueOf("<YOUR REGION>")) .build(); ListTablesStatisticRequest request = new ListTablesStatisticRequest(); request.withRateType("<rate_type>"); request.withOffset(<offset>); request.withLimit(<limit>); request.withOrderBy("<order_by>"); request.withSortBy("<sort_by>"); request.withFilter("<filter>"); request.withValue("<value>"); try { ListTablesStatisticResponse response = client.listTablesStatistic(request); System.out.println(response.toString()); } catch (ConnectionException e) { e.printStackTrace(); } catch (RequestTimeoutException e) { e.printStackTrace(); } catch (ServiceResponseException e) { e.printStackTrace(); System.out.println(e.getHttpStatusCode()); System.out.println(e.getRequestId()); System.out.println(e.getErrorCode()); System.out.println(e.getErrorMsg()); } } } |
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# coding: utf-8 from huaweicloudsdkcore.auth.credentials import BasicCredentials from huaweicloudsdkdws.v2.region.dws_region import DwsRegion from huaweicloudsdkcore.exceptions import exceptions from huaweicloudsdkdws.v2 import * if __name__ == "__main__": # The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. # In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak = os.getenv("CLOUD_SDK_AK") sk = os.getenv("CLOUD_SDK_SK") credentials = BasicCredentials(ak, sk) \ client = DwsClient.new_builder() \ .with_credentials(credentials) \ .with_region(DwsRegion.value_of("<YOUR REGION>")) \ .build() try: request = ListTablesStatisticRequest() request.rate_type = "<rate_type>" request.offset = <offset> request.limit = <limit> request.order_by = "<order_by>" request.sort_by = "<sort_by>" request.filter = "<filter>" request.value = "<value>" response = client.list_tables_statistic(request) print(response) except exceptions.ClientRequestException as e: print(e.status_code) print(e.request_id) print(e.error_code) print(e.error_msg) |
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package main import ( "fmt" "github.com/huaweicloud/huaweicloud-sdk-go-v3/core/auth/basic" dws "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2" "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/model" region "github.com/huaweicloud/huaweicloud-sdk-go-v3/services/dws/v2/region" ) func main() { // The AK and SK used for authentication are hard-coded or stored in plaintext, which has great security risks. It is recommended that the AK and SK be stored in ciphertext in configuration files or environment variables and decrypted during use to ensure security. // In this example, AK and SK are stored in environment variables for authentication. Before running this example, set environment variables CLOUD_SDK_AK and CLOUD_SDK_SK in the local environment ak := os.Getenv("CLOUD_SDK_AK") sk := os.Getenv("CLOUD_SDK_SK") auth := basic.NewCredentialsBuilder(). WithAk(ak). WithSk(sk). Build() client := dws.NewDwsClient( dws.DwsClientBuilder(). WithRegion(region.ValueOf("<YOUR REGION>")). WithCredential(auth). Build()) request := &model.ListTablesStatisticRequest{} request.RateType = "<rate_type>" request.Offset = int32(<offset>) request.Limit = int32(<limit>) orderByRequest:= "<order_by>" request.OrderBy = &orderByRequest sortByRequest:= "<sort_by>" request.SortBy = &sortByRequest filterRequest:= "<filter>" request.Filter = &filterRequest valueRequest:= "<value>" request.Value = &valueRequest response, err := client.ListTablesStatistic(request) if err == nil { fmt.Printf("%+v\n", response) } else { fmt.Println(err) } } |
更多编程语言的SDK代码示例,请参见API Explorer的代码示例页签,可生成自动对应的SDK代码示例。
状态码
状态码 |
描述 |
---|---|
200 |
查询表倾斜率或脏页率成功。 |
400 |
请求错误。 |
401 |
鉴权失败。 |
403 |
没有操作权限。 |
404 |
找不到资源。 |
500 |
服务内部错误。 |
503 |
服务不可用。 |